1// { dg-options "-std=gnu++0x" }
2// { dg-do compile }
3
4// Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
5//
6// This file is part of the GNU ISO C++ Library.  This library is free
7// software; you can redistribute it and/or modify it under the
8// terms of the GNU General Public License as published by the
9// Free Software Foundation; either version 3, or (at your option)
10// any later version.
11//
12// This library is distributed in the hope that it will be useful,
13// but WITHOUT ANY WARRANTY; without even the implied warranty of
14// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15// GNU General Public License for more details.
16//
17// You should have received a copy of the GNU General Public License along
18// with this library; see the file COPYING3.  If not see
19// <http://www.gnu.org/licenses/>.
20
21
22#include <functional>
23
24struct test_type
25{
26   int member();
27   int cmember()const;
28   int member2(char);
29   int cmember2(char)const;
30};
31
32struct functor1 : public std::unary_function<int, double>
33{
34  double operator()(int) const;
35};
36
37struct functor2 : public std::binary_function<int, char, double>
38{
39   double operator()(int, char) const;
40};
41
42template <class T>
43void verify_return_type(T, T)
44{
45}
46
47void test01()
48{
49  int zero;
50
51  std::reference_wrapper<double (int)>* pr1(0);
52  verify_return_type((*pr1)(0), double());
53  std::reference_wrapper<double (*)(int)>* pr2(0);
54  verify_return_type((*pr2)(0), double());
55  std::reference_wrapper<functor1>* pr5(0);
56
57  // libstdc++/24803
58  verify_return_type((*pr5)(0), double());
59  verify_return_type((*pr5)(zero), double());
60
61  std::reference_wrapper<double (int, char)>* pr1b(0);
62  verify_return_type((*pr1b)(0, 0), double());
63  std::reference_wrapper<double (*)(int, char)>* pr2b(0);
64  verify_return_type((*pr2b)(0, 0), double());
65  std::reference_wrapper<functor2>* pr5b(0);
66
67  // libstdc++/24803
68  verify_return_type((*pr5b)(0, 0), double());
69  verify_return_type((*pr5b)(zero, zero), double());
70}
71